Generate RSA public and private key pairs in PEM format — entirely in your browser.
Select the desired key size (2048 or 4096 bits) and click "Generate Key Pair". The tool generates an RSA key pair using the Web Crypto API and displays both the public key and private key in PEM format. Use the "Copy" buttons to copy each key to your clipboard. The 4096-bit option provides stronger security but may take a few seconds longer to generate.